The meeting did not take place until three months had passed, when Chang I was sure that the six-state alliance no longer existed.
一直过了三个月，张仪得到六国联盟确实已经瓦解了的消息以后，才出来接见楚使。
Objective To observe the adverse reaction and immunogenicity induced by live attenuated measles vaccine prepared with purified virus seeds of Chang-47 strain in infants aged 8 ~ 10 months.
目的观察麻疹长- 47株纯化毒种制备的麻疹减毒活疫苗在8 ~10月龄人群中的接种反应及免疫原性。
Objective To observe the adverse reaction and immunogenicity induced by live attenuated measles vaccine prepared with purified virus seeds of Chang-47 strain in infants aged 8 ~ 10 months.
目的观察麻疹长- 47株纯化毒种制备的麻疹减毒活疫苗在8 ~10月龄人群中的接种反应及免疫原性。
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